Officials: Measles at highest level

August 22, 2008 12:17:14 PM PDT

U.S. health officials say measles cases nationwide are at their highest levels in a dozen years.In 2008, 131 cases of measles were reported with 15 serious enough to be hospitalized. Experts say most resulted from failure to vaccinate.

Some parents refuse for religious reasons, others fear the vaccines may cause conditions such as autism.